mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 03:08:31 +00:00
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2013 Gateworks Corporation
|
||
|
|
*
|
||
|
|
* Author: Tim Harvey <tharvey@gateworks.com>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
|
||
|
|
/* i2c slave addresses */
|
||
|
|
#define GSC_SC_ADDR 0x20
|
||
|
|
#define GSC_RTC_ADDR 0x68
|
||
|
|
#define GSC_HWMON_ADDR 0x29
|
||
|
|
#define GSC_EEPROM_ADDR 0x51
|
||
|
|
|
||
|
|
/* System Controller registers */
|
||
|
|
enum {
|
||
|
|
GSC_SC_CTRL0 = 0x00,
|
||
|
|
GSC_SC_CTRL1 = 0x01,
|
||
|
|
GSC_SC_STATUS = 0x0a,
|
||
|
|
GSC_SC_FWVER = 0x0e,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* System Controller Control1 bits */
|
||
|
|
enum {
|
||
|
|
GSC_SC_CTRL1_WDDIS = 7, /* 1 = disable watchdog */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* System Controller Interrupt bits */
|
||
|
|
enum {
|
||
|
|
GSC_SC_IRQ_PB = 0, /* Pushbutton switch */
|
||
|
|
GSC_SC_IRQ_SECURE = 1, /* Secure Key erase operation complete */
|
||
|
|
GSC_SC_IRQ_EEPROM_WP = 2, /* EEPROM write violation */
|
||
|
|
GSC_SC_IRQ_GPIO = 4, /* GPIO change */
|
||
|
|
GSC_SC_IRQ_TAMPER = 5, /* Tamper detect */
|
||
|
|
GSC_SC_IRQ_WATCHDOG = 6, /* Watchdog trip */
|
||
|
|
GSC_SC_IRQ_PBLONG = 7, /* Pushbutton long hold */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Hardware Monitor registers */
|
||
|
|
enum {
|
||
|
|
GSC_HWMON_TEMP = 0x00,
|
||
|
|
GSC_HWMON_VIN = 0x02,
|
||
|
|
GSC_HWMON_VDD_3P3 = 0x05,
|
||
|
|
GSC_HWMON_VBATT = 0x08,
|
||
|
|
GSC_HWMON_VDD_5P0 = 0x0b,
|
||
|
|
GSC_HWMON_VDD_CORE = 0x0e,
|
||
|
|
GSC_HWMON_VDD_HIGH = 0x14,
|
||
|
|
GSC_HWMON_VDD_DDR = 0x17,
|
||
|
|
GSC_HWMON_VDD_SOC = 0x11,
|
||
|
|
GSC_HWMON_VDD_1P8 = 0x1d,
|
||
|
|
GSC_HWMON_VDD_2P5 = 0x23,
|
||
|
|
GSC_HWMON_VDD_1P0 = 0x20,
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* I2C transactions to the GSC are done via these functions which
|
||
|
|
* perform retries in the case of a busy GSC NAK'ing the transaction
|
||
|
|
*/
|
||
|
|
int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len);
|
||
|
|
int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len);
|
||
|
|
#endif
|
||
|
|
|